EP 3130750 B1 20180328 - GAS TURBINE COOLING SYSTEM
Title (en)
GAS TURBINE COOLING SYSTEM
Title (de)
GASTURBINENKÜHLSYSTEM
Title (fr)
SYSTÈME DE REFROIDISSEMENT DE TURBINES À GAZ
Publication
Application
Priority
EP 15181025 A 20150814
Abstract (en)
[origin: EP3130750A1] A gas turbine (1) comprising a compressor (2), a combustor (4) downstream from the compressor (2) in a gas flow direction (8), and a turbine (6) downstream from the combustor (4) in the gas flow direction (8) is described herein. The turbine (6) comprises a rotating part and a stationary part arranged around the rotating part. The rotating part comprises a rotor (30) and a blade (55), the blade (55) comprises a fir tree (60) at a root end of the blade (55), the blade (55) is attached to the rotor (30) by the fir tree (60). The turbine (6) comprises a gap (65) between the rotating part and the stationary part, the gap (65) extending between the blade (55) and the stationary part (34, 54) in a substantially radial direction (9) relative to the rotation axis (32) of the rotating part, and the gas turbine (1) comprises a cooling path (50) configured and arranged to direct a cooling fluid (50) from the compressor (2) to the gap (65), wherein at least a part of the cooling path (50) extends in the stationary part (34, 54), and wherein a pre-swirl nozzle (52) is arranged adjacent to the gap (65) and within the cooling path (50) in the stationary part (34, 54). Embodiments of further relevant apparatus are also described, including a sealing fin (70, 77, 110) extending into the gap (65) along with associated methods.
IPC 8 full level
F01D 5/08 (2006.01); F01D 11/00 (2006.01)
CPC (source: CN EP US)
F01D 5/082 (2013.01 - EP US); F01D 5/187 (2013.01 - US); F01D 5/30 (2013.01 - CN); F01D 5/3007 (2013.01 - US); F01D 11/001 (2013.01 - EP US); F01D 11/02 (2013.01 - US); F01D 25/12 (2013.01 - CN); F02C 3/04 (2013.01 - US); F02C 7/12 (2013.01 - US); F05D 2220/32 (2013.01 - US); F05D 2260/14 (2013.01 - EP US); F05D 2260/2212 (2013.01 - US); Y02E 20/16 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3130750 A1 20170215; EP 3130750 B1 20180328; CN 106567749 A 20170419; CN 106567749 B 20201120; US 10724382 B2 20200728; US 2017044909 A1 20170216
DOCDB simple family (application)
EP 15181025 A 20150814; CN 201610666269 A 20160815; US 201615235975 A 20160812